[jira] [Created] (FLINK-7047) Reorganize build profiles

["Chesnay Schepler (JIRA)" <ji...@apache.org>]

Chesnay Schepler created FLINK-7047:
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             Summary: Reorganize build profiles
                 Key: FLINK-7047
                 URL: https://issues.apache.org/jira/browse/FLINK-7047
             Project: Flink
          Issue Type: Improvement
          Components: Tests, Travis
    Affects Versions: 1.4.0
            Reporter: Chesnay Schepler
            Assignee: Chesnay Schepler
             Fix For: 1.4.0


With the current build times once again hitting the timeout it is time to revisit our approach.

The current approach of splitting all tests by name, while easy to maintain or extend, has the big disadvantage that it's fairly binary in regards to the timeout: either we're below the timeout and all builds pass, or we're above and the entire merging process stalls. 


I propose a different approach by which we bundle several modules, only execute the tests of these modules and only compile modules required for these tests.

5 groups are my current suggestion, which will result in 10 build profiles total.
The groups are:
# *core* - core flink modules like core,runtime,streaming-java,metrics,rocksdb
# *libraries* - flink-libraries and flink-storm
# *connectors* - flink-connectors, flink-connector-wikiedits, flink-tweet-inputformat
# *tests* - flink-tests
# *cluster+examples+dist* - flink-yarn, fink-yarn-tests, flink-mesos, flink-examples, flink-dist

To not increase the total number of profiles to ridiculous numbers i also propose to only test against 2 combinations of jdk+hadoop+scala:
# oraclejdk8 + hadoop 2.8.0 + scala 2.11
# openjdk7 + hadoop 2.4.1 + scala 2.10

My current estimate is that this will cause profiles to take at most 40 minutes.



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